Comments by alessandro.campagna (Top 1 by date)

Another user gived me the solution and I share it for everyone has my same problem:

static TimeSpan ParseHHMM(string input)
{
var match = Regex.Match(input, @"^(\d{2,}):(\d{2})$");
var hour = int.Parse(match.Groups[1].Value) % 24;
var min = int.Parse(match.Groups[2].Value);
return new TimeSpan(hour, min, 0);
}


// Write to console
Console.WriteLine(ParseHHMM("25:05").ToString(@"hh\:mm"));